Home / 79,514.04-119,260.80-66,269.78

Finding the Fourth Proportional to 79,514.04, 119,260.80 and 66,269.78

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Solution

The fourth proportional to 79,514.04, 119,260.80 and 66,269.78 is: 99,396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,514.04 : 119,260.80 = 66,269.78 : x
  2. Step 2: Convert to fraction form
    79,514.04/119,260.80 = 66,269.78/x
  3. Step 3: Cross multiply
    79,514.04x = 119,260.80 × 66,269.78
  4. Step 4: Simplify right side
    79,514.04x = 7,903,386,978.62
  5. Step 5: Solve for x
    x = 7,903,386,978.62/79,514.04
  6. Step 6: Final answer
    x = 99,396.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.